package com.ktjiaoyu.crm.filter;


import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.PrintWriter;

public class AuthorizationInterceptor implements HandlerInterceptor {
     @Override
     public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
         if(request.getSession().getAttribute("loginUser")==null){
             response.setContentType("text/html;charset=UTF-8");
            PrintWriter out = response.getWriter();
            out.print("<script>alert('请先进行登陆，再进行后续操作！(Interceptor 控 制)');location.href='"+request.getContextPath()+"/login.jsp';</script>");
            return false;
         }else{
             return true;
         }
     }
     @Override
     public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
                            ModelAndView modelAndView) throws Exception {
          }
     @Override
     public void afterCompletion(HttpServletRequest request, HttpServletResponse
             response, Object handler, Exception ex) throws Exception {
          }
     }

